Heat olive oil in a large stockpot over medium-high heat.
Add ground turkey and cook until browned, breaking it into small crumbles with a wooden spoon.
Add diced onion to the pot and sauté for 4 minutes until translucent.
Stir in garlic and tomato paste and cook for 1 minute until fragrant and the paste darkens slightly.
Add crushed tomatoes, chicken broth, oregano, basil, and red pepper flakes, then bring the liquid to a boil.
Reduce heat to medium-low and add the broken lasagna noodles.
Simmer for 10 to 12 minutes, stirring occasionally to prevent sticking, until noodles are al dente.
Stir in the fresh baby spinach until just wilted.
Remove from heat and serve immediately in bowls, topped with a tablespoon of ricotta cheese, a sprinkle of parmesan, and fresh parsley.